./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product49.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c144ce-8ceb-4480-bb8d-b8bfc5b035d4/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c144ce-8ceb-4480-bb8d-b8bfc5b035d4/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c144ce-8ceb-4480-bb8d-b8bfc5b035d4/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c144ce-8ceb-4480-bb8d-b8bfc5b035d4/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product49.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c144ce-8ceb-4480-bb8d-b8bfc5b035d4/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c144ce-8ceb-4480-bb8d-b8bfc5b035d4/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8ebbbe9395fd7f6497497f0e6f84282075bb296e20acc9821d0fb2d7075b331d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 15:20:47,700 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:20:47,703 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:20:47,740 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:20:47,741 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:20:47,742 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:20:47,743 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:20:47,744 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:20:47,746 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:20:47,746 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:20:47,747 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:20:47,748 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:20:47,749 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:20:47,750 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:20:47,752 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:20:47,755 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:20:47,757 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:20:47,759 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:20:47,760 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:20:47,762 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:20:47,763 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:20:47,764 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:20:47,766 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:20:47,766 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:20:47,770 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:20:47,770 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:20:47,770 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:20:47,771 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:20:47,772 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:20:47,773 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:20:47,773 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:20:47,774 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:20:47,775 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:20:47,775 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:20:47,776 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:20:47,777 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:20:47,778 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:20:47,778 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:20:47,778 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:20:47,779 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:20:47,780 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:20:47,781 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c144ce-8ceb-4480-bb8d-b8bfc5b035d4/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 15:20:47,819 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:20:47,820 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:20:47,821 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:20:47,829 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:20:47,830 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:20:47,830 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:20:47,830 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:20:47,830 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:20:47,831 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:20:47,831 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:20:47,832 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:20:47,832 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:20:47,833 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:20:47,833 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:20:47,833 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:20:47,833 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:20:47,834 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:20:47,834 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:20:47,835 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:20:47,835 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:20:47,835 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:20:47,835 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:20:47,836 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:20:47,836 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:20:47,836 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:20:47,836 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:20:47,837 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:20:47,837 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:20:47,837 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:20:47,838 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:20:47,838 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:20:47,838 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:20:47,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:20:47,839 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:20:47,839 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:20:47,839 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:20:47,840 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:20:47,840 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:20:47,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:20:47,840 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:20:47,840 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:20:47,841 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c144ce-8ceb-4480-bb8d-b8bfc5b035d4/bin/utaipan-Q6hlc19bkW/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c144ce-8ceb-4480-bb8d-b8bfc5b035d4/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ebbbe9395fd7f6497497f0e6f84282075bb296e20acc9821d0fb2d7075b331d [2022-11-23 15:20:48,161 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:20:48,184 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:20:48,187 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:20:48,188 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:20:48,189 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:20:48,190 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c144ce-8ceb-4480-bb8d-b8bfc5b035d4/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/product-lines/minepump_spec2_product49.cil.c [2022-11-23 15:20:51,271 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:20:51,689 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:20:51,690 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c144ce-8ceb-4480-bb8d-b8bfc5b035d4/sv-benchmarks/c/product-lines/minepump_spec2_product49.cil.c [2022-11-23 15:20:51,709 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c144ce-8ceb-4480-bb8d-b8bfc5b035d4/bin/utaipan-Q6hlc19bkW/data/f18ef1ba6/1821d69e2cad41ef93d7f8478e4d5117/FLAG27d186df3 [2022-11-23 15:20:51,725 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c144ce-8ceb-4480-bb8d-b8bfc5b035d4/bin/utaipan-Q6hlc19bkW/data/f18ef1ba6/1821d69e2cad41ef93d7f8478e4d5117 [2022-11-23 15:20:51,727 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:20:51,729 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:20:51,730 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:20:51,731 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:20:51,737 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:20:51,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:20:51" (1/1) ... [2022-11-23 15:20:51,739 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cfe735b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:51, skipping insertion in model container [2022-11-23 15:20:51,740 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:20:51" (1/1) ... [2022-11-23 15:20:51,747 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:20:51,810 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:20:52,071 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c144ce-8ceb-4480-bb8d-b8bfc5b035d4/sv-benchmarks/c/product-lines/minepump_spec2_product49.cil.c[18359,18372] [2022-11-23 15:20:52,077 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:20:52,088 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:20:52,191 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c144ce-8ceb-4480-bb8d-b8bfc5b035d4/sv-benchmarks/c/product-lines/minepump_spec2_product49.cil.c[18359,18372] [2022-11-23 15:20:52,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:20:52,228 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:20:52,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:52 WrapperNode [2022-11-23 15:20:52,229 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:20:52,230 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:20:52,231 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:20:52,231 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:20:52,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:52" (1/1) ... [2022-11-23 15:20:52,263 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:52" (1/1) ... [2022-11-23 15:20:52,287 INFO L138 Inliner]: procedures = 56, calls = 99, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 203 [2022-11-23 15:20:52,288 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:20:52,289 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:20:52,289 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:20:52,289 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:20:52,299 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:52" (1/1) ... [2022-11-23 15:20:52,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:52" (1/1) ... [2022-11-23 15:20:52,301 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:52" (1/1) ... [2022-11-23 15:20:52,302 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:52" (1/1) ... [2022-11-23 15:20:52,307 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:52" (1/1) ... [2022-11-23 15:20:52,329 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:52" (1/1) ... [2022-11-23 15:20:52,331 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:52" (1/1) ... [2022-11-23 15:20:52,332 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:52" (1/1) ... [2022-11-23 15:20:52,336 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:20:52,337 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:20:52,337 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:20:52,337 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:20:52,338 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:52" (1/1) ... [2022-11-23 15:20:52,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:20:52,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c144ce-8ceb-4480-bb8d-b8bfc5b035d4/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:20:52,368 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c144ce-8ceb-4480-bb8d-b8bfc5b035d4/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:20:52,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c144ce-8ceb-4480-bb8d-b8bfc5b035d4/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:20:52,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:20:52,410 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-23 15:20:52,410 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-23 15:20:52,410 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-23 15:20:52,411 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-23 15:20:52,411 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-23 15:20:52,411 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-23 15:20:52,411 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-23 15:20:52,411 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-23 15:20:52,411 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-11-23 15:20:52,412 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-11-23 15:20:52,412 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-23 15:20:52,412 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-23 15:20:52,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:20:52,412 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-23 15:20:52,413 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-23 15:20:52,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:20:52,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:20:52,496 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:20:52,498 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:20:52,812 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:20:53,003 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:20:53,003 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 15:20:53,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:20:53 BoogieIcfgContainer [2022-11-23 15:20:53,006 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:20:53,009 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:20:53,009 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:20:53,013 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:20:53,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:20:51" (1/3) ... [2022-11-23 15:20:53,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f77115e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:20:53, skipping insertion in model container [2022-11-23 15:20:53,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:52" (2/3) ... [2022-11-23 15:20:53,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f77115e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:20:53, skipping insertion in model container [2022-11-23 15:20:53,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:20:53" (3/3) ... [2022-11-23 15:20:53,016 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product49.cil.c [2022-11-23 15:20:53,036 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:20:53,036 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 15:20:53,083 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:20:53,089 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@662b41f4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:20:53,089 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 15:20:53,094 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 36 states have (on average 1.4444444444444444) internal successors, (52), 44 states have internal predecessors, (52), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-23 15:20:53,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-23 15:20:53,103 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:20:53,103 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:20:53,104 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:20:53,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:20:53,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1941332222, now seen corresponding path program 1 times [2022-11-23 15:20:53,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:20:53,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726703824] [2022-11-23 15:20:53,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:20:53,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:20:53,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:20:53,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:20:53,296 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:20:53,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726703824] [2022-11-23 15:20:53,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726703824] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:20:53,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:20:53,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:20:53,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363738752] [2022-11-23 15:20:53,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:20:53,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 15:20:53,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:20:53,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 15:20:53,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 15:20:53,331 INFO L87 Difference]: Start difference. First operand has 56 states, 36 states have (on average 1.4444444444444444) internal successors, (52), 44 states have internal predecessors, (52), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:20:53,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:20:53,424 INFO L93 Difference]: Finished difference Result 110 states and 149 transitions. [2022-11-23 15:20:53,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 15:20:53,454 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-11-23 15:20:53,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:20:53,464 INFO L225 Difference]: With dead ends: 110 [2022-11-23 15:20:53,464 INFO L226 Difference]: Without dead ends: 51 [2022-11-23 15:20:53,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 15:20:53,475 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:20:53,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 54 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:20:53,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-11-23 15:20:53,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-11-23 15:20:53,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 40 states have internal predecessors, (44), 11 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-23 15:20:53,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 65 transitions. [2022-11-23 15:20:53,547 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 65 transitions. Word has length 17 [2022-11-23 15:20:53,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:20:53,548 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 65 transitions. [2022-11-23 15:20:53,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:20:53,548 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 65 transitions. [2022-11-23 15:20:53,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-23 15:20:53,551 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:20:53,551 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:20:53,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:20:53,551 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:20:53,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:20:53,553 INFO L85 PathProgramCache]: Analyzing trace with hash -908573725, now seen corresponding path program 1 times [2022-11-23 15:20:53,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:20:53,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828245358] [2022-11-23 15:20:53,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:20:53,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:20:53,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:20:53,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:20:53,696 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:20:53,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828245358] [2022-11-23 15:20:53,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828245358] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:20:53,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:20:53,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:20:53,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789991725] [2022-11-23 15:20:53,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:20:53,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:20:53,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:20:53,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:20:53,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:20:53,700 INFO L87 Difference]: Start difference. First operand 51 states and 65 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:20:53,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:20:53,770 INFO L93 Difference]: Finished difference Result 79 states and 101 transitions. [2022-11-23 15:20:53,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:20:53,771 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-11-23 15:20:53,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:20:53,775 INFO L225 Difference]: With dead ends: 79 [2022-11-23 15:20:53,776 INFO L226 Difference]: Without dead ends: 43 [2022-11-23 15:20:53,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:20:53,782 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 7 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:20:53,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 71 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:20:53,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-23 15:20:53,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-11-23 15:20:53,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 35 states have internal predecessors, (38), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-23 15:20:53,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 54 transitions. [2022-11-23 15:20:53,802 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 54 transitions. Word has length 18 [2022-11-23 15:20:53,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:20:53,803 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 54 transitions. [2022-11-23 15:20:53,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:20:53,803 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 54 transitions. [2022-11-23 15:20:53,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-23 15:20:53,804 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:20:53,804 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:20:53,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:20:53,805 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:20:53,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:20:53,806 INFO L85 PathProgramCache]: Analyzing trace with hash -759752505, now seen corresponding path program 1 times [2022-11-23 15:20:53,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:20:53,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242593946] [2022-11-23 15:20:53,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:20:53,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:20:53,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:20:53,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:20:53,960 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:20:53,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242593946] [2022-11-23 15:20:53,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242593946] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:20:53,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:20:53,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:20:53,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529822501] [2022-11-23 15:20:53,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:20:53,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:20:53,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:20:53,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:20:53,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:20:53,963 INFO L87 Difference]: Start difference. First operand 43 states and 54 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:20:54,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:20:54,065 INFO L93 Difference]: Finished difference Result 84 states and 107 transitions. [2022-11-23 15:20:54,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:20:54,065 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2022-11-23 15:20:54,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:20:54,067 INFO L225 Difference]: With dead ends: 84 [2022-11-23 15:20:54,067 INFO L226 Difference]: Without dead ends: 43 [2022-11-23 15:20:54,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:20:54,069 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 50 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:20:54,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 51 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:20:54,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-23 15:20:54,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-11-23 15:20:54,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 35 states have internal predecessors, (37), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-23 15:20:54,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 53 transitions. [2022-11-23 15:20:54,080 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 53 transitions. Word has length 20 [2022-11-23 15:20:54,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:20:54,081 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 53 transitions. [2022-11-23 15:20:54,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:20:54,082 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 53 transitions. [2022-11-23 15:20:54,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-23 15:20:54,083 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:20:54,083 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:20:54,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 15:20:54,083 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:20:54,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:20:54,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1480723860, now seen corresponding path program 1 times [2022-11-23 15:20:54,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:20:54,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786511690] [2022-11-23 15:20:54,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:20:54,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:20:54,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:20:54,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:20:54,166 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:20:54,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786511690] [2022-11-23 15:20:54,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786511690] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:20:54,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:20:54,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:20:54,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017190483] [2022-11-23 15:20:54,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:20:54,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:20:54,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:20:54,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:20:54,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:20:54,169 INFO L87 Difference]: Start difference. First operand 43 states and 53 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:20:54,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:20:54,227 INFO L93 Difference]: Finished difference Result 119 states and 150 transitions. [2022-11-23 15:20:54,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:20:54,228 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2022-11-23 15:20:54,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:20:54,230 INFO L225 Difference]: With dead ends: 119 [2022-11-23 15:20:54,230 INFO L226 Difference]: Without dead ends: 78 [2022-11-23 15:20:54,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:20:54,232 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 35 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:20:54,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 90 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:20:54,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-11-23 15:20:54,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 76. [2022-11-23 15:20:54,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 51 states have (on average 1.2745098039215685) internal successors, (65), 58 states have internal predecessors, (65), 12 states have call successors, (12), 12 states have call predecessors, (12), 12 states have return successors, (16), 12 states have call predecessors, (16), 12 states have call successors, (16) [2022-11-23 15:20:54,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 93 transitions. [2022-11-23 15:20:54,248 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 93 transitions. Word has length 23 [2022-11-23 15:20:54,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:20:54,248 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 93 transitions. [2022-11-23 15:20:54,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:20:54,249 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 93 transitions. [2022-11-23 15:20:54,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-23 15:20:54,250 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:20:54,250 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:20:54,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 15:20:54,251 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:20:54,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:20:54,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1160546660, now seen corresponding path program 1 times [2022-11-23 15:20:54,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:20:54,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663014431] [2022-11-23 15:20:54,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:20:54,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:20:54,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:20:54,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:20:54,398 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:20:54,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663014431] [2022-11-23 15:20:54,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663014431] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:20:54,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:20:54,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 15:20:54,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124083552] [2022-11-23 15:20:54,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:20:54,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:20:54,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:20:54,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:20:54,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:20:54,406 INFO L87 Difference]: Start difference. First operand 76 states and 93 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 15:20:54,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:20:54,567 INFO L93 Difference]: Finished difference Result 220 states and 276 transitions. [2022-11-23 15:20:54,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 15:20:54,569 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2022-11-23 15:20:54,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:20:54,574 INFO L225 Difference]: With dead ends: 220 [2022-11-23 15:20:54,574 INFO L226 Difference]: Without dead ends: 146 [2022-11-23 15:20:54,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-23 15:20:54,576 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 31 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:20:54,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 199 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:20:54,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-11-23 15:20:54,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 138. [2022-11-23 15:20:54,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 93 states have (on average 1.2365591397849462) internal successors, (115), 104 states have internal predecessors, (115), 22 states have call successors, (22), 22 states have call predecessors, (22), 22 states have return successors, (30), 22 states have call predecessors, (30), 22 states have call successors, (30) [2022-11-23 15:20:54,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 167 transitions. [2022-11-23 15:20:54,612 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 167 transitions. Word has length 28 [2022-11-23 15:20:54,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:20:54,615 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 167 transitions. [2022-11-23 15:20:54,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 15:20:54,615 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 167 transitions. [2022-11-23 15:20:54,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 15:20:54,619 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:20:54,619 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:20:54,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 15:20:54,620 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:20:54,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:20:54,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1579103765, now seen corresponding path program 1 times [2022-11-23 15:20:54,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:20:54,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263425680] [2022-11-23 15:20:54,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:20:54,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:20:54,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:20:54,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:20:54,757 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:20:54,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263425680] [2022-11-23 15:20:54,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263425680] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:20:54,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:20:54,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:20:54,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025168296] [2022-11-23 15:20:54,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:20:54,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:20:54,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:20:54,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:20:54,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:20:54,761 INFO L87 Difference]: Start difference. First operand 138 states and 167 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-23 15:20:54,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:20:54,835 INFO L93 Difference]: Finished difference Result 212 states and 266 transitions. [2022-11-23 15:20:54,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:20:54,837 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2022-11-23 15:20:54,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:20:54,846 INFO L225 Difference]: With dead ends: 212 [2022-11-23 15:20:54,846 INFO L226 Difference]: Without dead ends: 210 [2022-11-23 15:20:54,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:20:54,849 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 29 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:20:54,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 82 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:20:54,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-11-23 15:20:54,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2022-11-23 15:20:54,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 141 states have (on average 1.2411347517730495) internal successors, (175), 158 states have internal predecessors, (175), 34 states have call successors, (34), 34 states have call predecessors, (34), 34 states have return successors, (54), 34 states have call predecessors, (54), 34 states have call successors, (54) [2022-11-23 15:20:54,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 263 transitions. [2022-11-23 15:20:54,915 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 263 transitions. Word has length 31 [2022-11-23 15:20:54,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:20:54,916 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 263 transitions. [2022-11-23 15:20:54,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-23 15:20:54,916 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 263 transitions. [2022-11-23 15:20:54,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-23 15:20:54,924 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:20:54,925 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:20:54,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 15:20:54,926 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:20:54,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:20:54,927 INFO L85 PathProgramCache]: Analyzing trace with hash -672457244, now seen corresponding path program 1 times [2022-11-23 15:20:54,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:20:54,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096790984] [2022-11-23 15:20:54,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:20:54,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:20:54,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:20:55,320 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 15:20:55,320 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:20:55,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096790984] [2022-11-23 15:20:55,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096790984] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:20:55,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:20:55,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 15:20:55,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318967033] [2022-11-23 15:20:55,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:20:55,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 15:20:55,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:20:55,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 15:20:55,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-23 15:20:55,322 INFO L87 Difference]: Start difference. First operand 210 states and 263 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-23 15:20:55,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:20:55,793 INFO L93 Difference]: Finished difference Result 695 states and 894 transitions. [2022-11-23 15:20:55,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 15:20:55,794 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 53 [2022-11-23 15:20:55,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:20:55,797 INFO L225 Difference]: With dead ends: 695 [2022-11-23 15:20:55,797 INFO L226 Difference]: Without dead ends: 487 [2022-11-23 15:20:55,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2022-11-23 15:20:55,799 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 168 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:20:55,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 192 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 15:20:55,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2022-11-23 15:20:55,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 341. [2022-11-23 15:20:55,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 232 states have (on average 1.2155172413793103) internal successors, (282), 251 states have internal predecessors, (282), 51 states have call successors, (51), 51 states have call predecessors, (51), 57 states have return successors, (81), 54 states have call predecessors, (81), 51 states have call successors, (81) [2022-11-23 15:20:55,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 414 transitions. [2022-11-23 15:20:55,868 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 414 transitions. Word has length 53 [2022-11-23 15:20:55,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:20:55,868 INFO L495 AbstractCegarLoop]: Abstraction has 341 states and 414 transitions. [2022-11-23 15:20:55,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-23 15:20:55,869 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 414 transitions. [2022-11-23 15:20:55,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-23 15:20:55,870 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:20:55,870 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:20:55,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 15:20:55,871 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:20:55,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:20:55,872 INFO L85 PathProgramCache]: Analyzing trace with hash 513446656, now seen corresponding path program 1 times [2022-11-23 15:20:55,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:20:55,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994927983] [2022-11-23 15:20:55,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:20:55,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:20:55,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:20:55,990 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-23 15:20:55,991 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:20:55,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994927983] [2022-11-23 15:20:55,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994927983] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:20:55,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:20:55,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:20:55,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395285059] [2022-11-23 15:20:55,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:20:55,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:20:55,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:20:55,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:20:55,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:20:55,993 INFO L87 Difference]: Start difference. First operand 341 states and 414 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-23 15:20:56,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:20:56,104 INFO L93 Difference]: Finished difference Result 533 states and 658 transitions. [2022-11-23 15:20:56,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:20:56,106 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 56 [2022-11-23 15:20:56,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:20:56,108 INFO L225 Difference]: With dead ends: 533 [2022-11-23 15:20:56,108 INFO L226 Difference]: Without dead ends: 295 [2022-11-23 15:20:56,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:20:56,110 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 38 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:20:56,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 144 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:20:56,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2022-11-23 15:20:56,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 279. [2022-11-23 15:20:56,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 188 states have (on average 1.202127659574468) internal successors, (226), 204 states have internal predecessors, (226), 42 states have call successors, (42), 42 states have call predecessors, (42), 48 states have return successors, (64), 44 states have call predecessors, (64), 42 states have call successors, (64) [2022-11-23 15:20:56,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 332 transitions. [2022-11-23 15:20:56,161 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 332 transitions. Word has length 56 [2022-11-23 15:20:56,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:20:56,162 INFO L495 AbstractCegarLoop]: Abstraction has 279 states and 332 transitions. [2022-11-23 15:20:56,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-23 15:20:56,162 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 332 transitions. [2022-11-23 15:20:56,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-23 15:20:56,164 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:20:56,164 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:20:56,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 15:20:56,164 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:20:56,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:20:56,165 INFO L85 PathProgramCache]: Analyzing trace with hash 828904072, now seen corresponding path program 1 times [2022-11-23 15:20:56,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:20:56,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938298010] [2022-11-23 15:20:56,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:20:56,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:20:56,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:20:56,282 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-23 15:20:56,282 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:20:56,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938298010] [2022-11-23 15:20:56,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938298010] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:20:56,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625008023] [2022-11-23 15:20:56,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:20:56,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:20:56,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c144ce-8ceb-4480-bb8d-b8bfc5b035d4/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:20:56,287 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c144ce-8ceb-4480-bb8d-b8bfc5b035d4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:20:56,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c144ce-8ceb-4480-bb8d-b8bfc5b035d4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 15:20:56,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:20:56,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 15:20:56,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:20:56,567 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:20:56,567 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:20:56,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625008023] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:20:56,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 15:20:56,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-11-23 15:20:56,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044779799] [2022-11-23 15:20:56,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:20:56,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:20:56,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:20:56,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:20:56,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:20:56,573 INFO L87 Difference]: Start difference. First operand 279 states and 332 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-23 15:20:56,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:20:56,663 INFO L93 Difference]: Finished difference Result 476 states and 576 transitions. [2022-11-23 15:20:56,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:20:56,664 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 61 [2022-11-23 15:20:56,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:20:56,666 INFO L225 Difference]: With dead ends: 476 [2022-11-23 15:20:56,666 INFO L226 Difference]: Without dead ends: 259 [2022-11-23 15:20:56,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:20:56,669 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 21 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:20:56,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 83 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:20:56,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2022-11-23 15:20:56,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 259. [2022-11-23 15:20:56,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 175 states have (on average 1.16) internal successors, (203), 190 states have internal predecessors, (203), 39 states have call successors, (39), 39 states have call predecessors, (39), 44 states have return successors, (49), 41 states have call predecessors, (49), 39 states have call successors, (49) [2022-11-23 15:20:56,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 291 transitions. [2022-11-23 15:20:56,712 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 291 transitions. Word has length 61 [2022-11-23 15:20:56,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:20:56,713 INFO L495 AbstractCegarLoop]: Abstraction has 259 states and 291 transitions. [2022-11-23 15:20:56,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-23 15:20:56,713 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 291 transitions. [2022-11-23 15:20:56,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-23 15:20:56,714 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:20:56,715 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:20:56,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c144ce-8ceb-4480-bb8d-b8bfc5b035d4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 15:20:56,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c144ce-8ceb-4480-bb8d-b8bfc5b035d4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:20:56,921 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:20:56,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:20:56,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1884349724, now seen corresponding path program 1 times [2022-11-23 15:20:56,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:20:56,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67837864] [2022-11-23 15:20:56,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:20:56,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:20:56,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:20:57,517 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 15:20:57,518 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:20:57,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67837864] [2022-11-23 15:20:57,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67837864] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:20:57,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [671533661] [2022-11-23 15:20:57,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:20:57,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:20:57,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c144ce-8ceb-4480-bb8d-b8bfc5b035d4/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:20:57,523 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c144ce-8ceb-4480-bb8d-b8bfc5b035d4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:20:57,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c144ce-8ceb-4480-bb8d-b8bfc5b035d4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 15:20:57,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:20:57,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-23 15:20:57,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:20:58,203 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 13 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:20:58,204 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:20:58,891 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-23 15:20:58,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [671533661] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:20:58,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1324179471] [2022-11-23 15:20:58,935 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2022-11-23 15:20:58,935 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:20:58,939 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:20:58,945 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:20:58,945 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:21:02,633 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 41 for LOIs [2022-11-23 15:21:02,641 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 30 for LOIs [2022-11-23 15:21:02,881 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 59 for LOIs [2022-11-23 15:21:03,114 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 22 for LOIs [2022-11-23 15:21:03,116 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 40 for LOIs [2022-11-23 15:21:03,124 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 35 for LOIs [2022-11-23 15:21:03,126 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:21:07,855 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6802#(and (= ~pumpRunning~0 |timeShift_isPumpRunning_~retValue_acc~6#1|) (<= 0 (+ |timeShift___utac_acc__Specification2_spec__2_~tmp___0~0#1| 2147483648)) (= ~head~0.offset 0) (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification2_spec__2_~tmp___0~0#1|) (= 1 ~systemActive~0) (<= 0 ~methAndRunningLastTime~0) (<= 0 |old(~methAndRunningLastTime~0)|) (<= 0 ~head~0.base) (= |timeShift_isPumpRunning_#res#1| |timeShift_isPumpRunning_~retValue_acc~6#1|) (<= 0 ~methaneLevelCritical~0) (<= ~head~0.base 0) (= |#NULL.offset| 0) (not (= |timeShift___utac_acc__Specification2_spec__2_~tmp___0~0#1| 0)) (not (= ~methAndRunningLastTime~0 0)) (<= |timeShift___utac_acc__Specification2_spec__2_~tmp___0~0#1| 2147483647) (<= 0 |#StackHeapBarrier|) (not (= |timeShift___utac_acc__Specification2_spec__2_~tmp~1#1| 0)) (<= |timeShift___utac_acc__Specification2_spec__2_~tmp~1#1| 2147483647) (= |timeShift___utac_acc__Specification2_spec__2_~tmp~1#1| ~methaneLevelCritical~0) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-23 15:21:07,856 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 15:21:07,856 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:21:07,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 14] total 34 [2022-11-23 15:21:07,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179410905] [2022-11-23 15:21:07,857 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 15:21:07,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-23 15:21:07,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:21:07,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-23 15:21:07,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=440, Invalid=3466, Unknown=0, NotChecked=0, Total=3906 [2022-11-23 15:21:07,860 INFO L87 Difference]: Start difference. First operand 259 states and 291 transitions. Second operand has 34 states, 31 states have (on average 3.4838709677419355) internal successors, (108), 28 states have internal predecessors, (108), 14 states have call successors, (24), 13 states have call predecessors, (24), 11 states have return successors, (21), 10 states have call predecessors, (21), 12 states have call successors, (21) [2022-11-23 15:21:10,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:21:10,352 INFO L93 Difference]: Finished difference Result 826 states and 956 transitions. [2022-11-23 15:21:10,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-23 15:21:10,352 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 31 states have (on average 3.4838709677419355) internal successors, (108), 28 states have internal predecessors, (108), 14 states have call successors, (24), 13 states have call predecessors, (24), 11 states have return successors, (21), 10 states have call predecessors, (21), 12 states have call successors, (21) Word has length 64 [2022-11-23 15:21:10,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:21:10,356 INFO L225 Difference]: With dead ends: 826 [2022-11-23 15:21:10,356 INFO L226 Difference]: Without dead ends: 629 [2022-11-23 15:21:10,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 150 SyntacticMatches, 3 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3087 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=1060, Invalid=7496, Unknown=0, NotChecked=0, Total=8556 [2022-11-23 15:21:10,361 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 928 mSDsluCounter, 747 mSDsCounter, 0 mSdLazyCounter, 1463 mSolverCounterSat, 518 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 931 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 1981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 518 IncrementalHoareTripleChecker+Valid, 1463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:21:10,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [931 Valid, 833 Invalid, 1981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [518 Valid, 1463 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-23 15:21:10,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2022-11-23 15:21:10,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 505. [2022-11-23 15:21:10,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 348 states have (on average 1.1580459770114941) internal successors, (403), 372 states have internal predecessors, (403), 72 states have call successors, (72), 68 states have call predecessors, (72), 84 states have return successors, (91), 81 states have call predecessors, (91), 72 states have call successors, (91) [2022-11-23 15:21:10,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 566 transitions. [2022-11-23 15:21:10,428 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 566 transitions. Word has length 64 [2022-11-23 15:21:10,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:21:10,429 INFO L495 AbstractCegarLoop]: Abstraction has 505 states and 566 transitions. [2022-11-23 15:21:10,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 31 states have (on average 3.4838709677419355) internal successors, (108), 28 states have internal predecessors, (108), 14 states have call successors, (24), 13 states have call predecessors, (24), 11 states have return successors, (21), 10 states have call predecessors, (21), 12 states have call successors, (21) [2022-11-23 15:21:10,429 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 566 transitions. [2022-11-23 15:21:10,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-23 15:21:10,431 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:21:10,431 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:21:10,443 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c144ce-8ceb-4480-bb8d-b8bfc5b035d4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-23 15:21:10,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c144ce-8ceb-4480-bb8d-b8bfc5b035d4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-23 15:21:10,638 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:21:10,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:21:10,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1403694762, now seen corresponding path program 1 times [2022-11-23 15:21:10,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:21:10,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881914959] [2022-11-23 15:21:10,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:21:10,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:21:10,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:21:11,729 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 49 proven. 55 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-23 15:21:11,729 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:21:11,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881914959] [2022-11-23 15:21:11,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881914959] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:21:11,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1219293518] [2022-11-23 15:21:11,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:21:11,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:21:11,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c144ce-8ceb-4480-bb8d-b8bfc5b035d4/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:21:11,731 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c144ce-8ceb-4480-bb8d-b8bfc5b035d4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:21:11,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c144ce-8ceb-4480-bb8d-b8bfc5b035d4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 15:21:11,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:21:11,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 39 conjunts are in the unsatisfiable core [2022-11-23 15:21:11,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:21:12,678 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 64 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:21:12,679 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:21:13,817 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 73 proven. 32 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 15:21:13,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1219293518] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:21:13,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [317421044] [2022-11-23 15:21:13,821 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2022-11-23 15:21:13,821 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:21:13,821 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:21:13,822 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:21:13,822 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:21:20,457 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 136 for LOIs [2022-11-23 15:21:20,482 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 32 for LOIs [2022-11-23 15:21:20,697 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 61 for LOIs [2022-11-23 15:21:20,951 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 24 for LOIs [2022-11-23 15:21:20,953 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 45 for LOIs [2022-11-23 15:21:20,961 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 37 for LOIs [2022-11-23 15:21:20,964 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:21:26,313 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '9619#(and (= ~pumpRunning~0 |timeShift_isPumpRunning_~retValue_acc~6#1|) (<= 0 (+ |timeShift___utac_acc__Specification2_spec__2_~tmp___0~0#1| 2147483648)) (= ~head~0.offset 0) (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification2_spec__2_~tmp___0~0#1|) (= 1 ~systemActive~0) (<= 0 ~methAndRunningLastTime~0) (<= 0 |old(~methAndRunningLastTime~0)|) (<= |old(~methAndRunningLastTime~0)| 1) (= |timeShift_isPumpRunning_#res#1| |timeShift_isPumpRunning_~retValue_acc~6#1|) (<= 0 ~methaneLevelCritical~0) (= ~head~0.base 0) (= |#NULL.offset| 0) (<= |timeShift___utac_acc__Specification2_spec__2_~tmp~1#1| 1) (not (= |timeShift___utac_acc__Specification2_spec__2_~tmp___0~0#1| 0)) (not (= ~methAndRunningLastTime~0 0)) (<= ~methAndRunningLastTime~0 1) (<= |timeShift___utac_acc__Specification2_spec__2_~tmp___0~0#1| 2147483647) (<= 0 |#StackHeapBarrier|) (not (= |timeShift___utac_acc__Specification2_spec__2_~tmp~1#1| 0)) (= |timeShift___utac_acc__Specification2_spec__2_~tmp~1#1| ~methaneLevelCritical~0) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-23 15:21:26,314 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 15:21:26,314 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:21:26,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18, 17] total 47 [2022-11-23 15:21:26,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486658832] [2022-11-23 15:21:26,315 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 15:21:26,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-11-23 15:21:26,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:21:26,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-11-23 15:21:26,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=689, Invalid=5011, Unknown=0, NotChecked=0, Total=5700 [2022-11-23 15:21:26,318 INFO L87 Difference]: Start difference. First operand 505 states and 566 transitions. Second operand has 47 states, 45 states have (on average 4.177777777777778) internal successors, (188), 43 states have internal predecessors, (188), 26 states have call successors, (37), 13 states have call predecessors, (37), 18 states have return successors, (36), 20 states have call predecessors, (36), 26 states have call successors, (36) [2022-11-23 15:21:27,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:21:27,670 INFO L93 Difference]: Finished difference Result 668 states and 760 transitions. [2022-11-23 15:21:27,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-23 15:21:27,672 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 45 states have (on average 4.177777777777778) internal successors, (188), 43 states have internal predecessors, (188), 26 states have call successors, (37), 13 states have call predecessors, (37), 18 states have return successors, (36), 20 states have call predecessors, (36), 26 states have call successors, (36) Word has length 109 [2022-11-23 15:21:27,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:21:27,673 INFO L225 Difference]: With dead ends: 668 [2022-11-23 15:21:27,673 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 15:21:27,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 272 SyntacticMatches, 4 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3472 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=1093, Invalid=6917, Unknown=0, NotChecked=0, Total=8010 [2022-11-23 15:21:27,683 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 564 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 564 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 1199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-23 15:21:27,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [564 Valid, 483 Invalid, 1199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [318 Valid, 881 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-23 15:21:27,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 15:21:27,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 15:21:27,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:21:27,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 15:21:27,685 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 109 [2022-11-23 15:21:27,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:21:27,685 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 15:21:27,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 45 states have (on average 4.177777777777778) internal successors, (188), 43 states have internal predecessors, (188), 26 states have call successors, (37), 13 states have call predecessors, (37), 18 states have return successors, (36), 20 states have call predecessors, (36), 26 states have call successors, (36) [2022-11-23 15:21:27,686 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 15:21:27,686 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 15:21:27,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 15:21:27,701 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c144ce-8ceb-4480-bb8d-b8bfc5b035d4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-23 15:21:27,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c144ce-8ceb-4480-bb8d-b8bfc5b035d4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-23 15:21:27,897 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 15:21:31,347 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 400 406) no Hoare annotation was computed. [2022-11-23 15:21:31,348 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 400 406) the Hoare annotation is: true [2022-11-23 15:21:31,348 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 188 199) the Hoare annotation is: true [2022-11-23 15:21:31,348 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 188 199) no Hoare annotation was computed. [2022-11-23 15:21:31,348 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 200 208) the Hoare annotation is: true [2022-11-23 15:21:31,348 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 200 208) no Hoare annotation was computed. [2022-11-23 15:21:31,349 INFO L895 garLoopResultBuilder]: At program point L448(line 448) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~waterLevel~0)| 2))) (.cse4 (= 0 ~systemActive~0))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 1)) .cse1) (or .cse2 .cse3 (not (= |old(~waterLevel~0)| 1)) .cse0 .cse4) (or .cse2 .cse3 .cse0 .cse1 .cse4))) [2022-11-23 15:21:31,349 INFO L895 garLoopResultBuilder]: At program point L940(line 940) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~waterLevel~0)| 2))) (.cse4 (= 0 ~systemActive~0))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 1)) .cse1) (or .cse2 .cse3 (not (= |old(~waterLevel~0)| 1)) .cse0 .cse4) (or .cse2 .cse3 .cse0 .cse1 .cse4))) [2022-11-23 15:21:31,350 INFO L895 garLoopResultBuilder]: At program point L453(line 453) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse4 (not (= 1 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ~methAndRunningLastTime~0 0)) (.cse6 (not (= |old(~waterLevel~0)| 2))) (.cse5 (= 0 ~systemActive~0))) (and (or .cse0 (and .cse1 .cse2 (= ~waterLevel~0 1)) .cse3 (not (= |old(~waterLevel~0)| 1)) .cse4 .cse5) (or .cse4 (not (= |old(~pumpRunning~0)| 1)) .cse6) (or .cse0 .cse3 .cse4 (and .cse1 .cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse6 .cse5))) [2022-11-23 15:21:31,350 INFO L895 garLoopResultBuilder]: At program point L453-1(lines 434 458) the Hoare annotation is: (let ((.cse6 (= 0 ~systemActive~0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= |old(~waterLevel~0)| 1))) (.cse4 (= ~pumpRunning~0 0)) (.cse5 (= ~waterLevel~0 1)) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse7 (= ~methAndRunningLastTime~0 0)) (.cse3 (not (= 1 ~systemActive~0))) (.cse9 (not (= |old(~pumpRunning~0)| 1))) (.cse8 (not (= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2 .cse3 (and .cse4 .cse5) .cse6) (or .cse0 .cse1 .cse3 (and .cse7 (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 1)) .cse8 .cse6) (or .cse0 .cse1 .cse7 .cse2 .cse3) (or .cse3 .cse9 .cse8 (and .cse4 (= |timeShift_processEnvironment_~tmp~4#1| 1) .cse5)) (or .cse1 .cse7 .cse3 (not (= ~methaneLevelCritical~0 0)) .cse9 .cse8))) [2022-11-23 15:21:31,350 INFO L899 garLoopResultBuilder]: For program point L387-1(lines 387 393) no Hoare annotation was computed. [2022-11-23 15:21:31,350 INFO L899 garLoopResultBuilder]: For program point L288(lines 288 298) no Hoare annotation was computed. [2022-11-23 15:21:31,351 INFO L895 garLoopResultBuilder]: At program point L284(lines 284 301) the Hoare annotation is: (let ((.cse10 (= ~pumpRunning~0 0)) (.cse12 (= ~methAndRunningLastTime~0 0)) (.cse7 (= 0 ~systemActive~0)) (.cse8 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~1#1| 0)) (.cse13 (= ~methaneLevelCritical~0 0))) (let ((.cse3 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (not (= |old(~waterLevel~0)| 2))) (.cse11 (= ~waterLevel~0 1)) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse9 (not (= |old(~waterLevel~0)| 1))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not .cse13)) (.cse5 (and .cse10 .cse12 .cse13 (not .cse7) .cse8))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse6 .cse0 .cse1 .cse2 .cse4 .cse7 .cse8) (or .cse6 .cse0 .cse9 .cse1 (and .cse10 .cse11) .cse7) (or .cse6 .cse0 .cse1 (and .cse12 (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 1)) .cse4 .cse7) (or .cse6 .cse0 .cse12 .cse9 .cse1) (or .cse1 .cse3 .cse4 (and .cse10 (= |timeShift_processEnvironment_~tmp~4#1| 1) .cse11)) (or .cse6 .cse0 .cse9 .cse1 .cse2 .cse5 .cse7)))) [2022-11-23 15:21:31,351 INFO L895 garLoopResultBuilder]: At program point L284-1(lines 276 304) the Hoare annotation is: (let ((.cse12 (= 0 ~systemActive~0))) (let ((.cse6 (= ~pumpRunning~0 0)) (.cse7 (= ~methAndRunningLastTime~0 0)) (.cse9 (not .cse12)) (.cse11 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~1#1| 0)) (.cse14 (= ~methaneLevelCritical~0 0))) (let ((.cse3 (not (= |old(~pumpRunning~0)| 1))) (.cse8 (= ~waterLevel~0 1)) (.cse4 (not (= |old(~waterLevel~0)| 2))) (.cse10 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse13 (not (= |old(~waterLevel~0)| 1))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not .cse14)) (.cse5 (and .cse6 .cse7 .cse14 .cse9 .cse11))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse1 .cse3 .cse4 (and .cse6 (= |timeShift_processEnvironment_~tmp~4#1| 1) .cse7 .cse8 .cse9)) (or .cse10 .cse0 .cse1 (and .cse7 .cse11) .cse2 .cse4 .cse12) (or .cse10 .cse0 .cse13 .cse1 (and .cse6 .cse7 .cse8 .cse9)) (or .cse10 .cse0 .cse1 .cse4 (and (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 1))) (or .cse10 .cse0 .cse13 .cse1 .cse2 .cse5 .cse12))))) [2022-11-23 15:21:31,351 INFO L899 garLoopResultBuilder]: For program point L289(lines 289 295) no Hoare annotation was computed. [2022-11-23 15:21:31,351 INFO L899 garLoopResultBuilder]: For program point L380-1(lines 379 398) no Hoare annotation was computed. [2022-11-23 15:21:31,352 INFO L895 garLoopResultBuilder]: At program point L442(lines 442 450) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (= 0 ~systemActive~0)) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse5 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (not (= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 (not (= |old(~waterLevel~0)| 1)) .cse2 .cse3) (or .cse0 .cse1 .cse2 .cse4 .cse3) (or .cse1 (= ~methAndRunningLastTime~0 0) .cse2 (not (= ~methaneLevelCritical~0 0)) .cse5 .cse4) (or .cse2 .cse5 .cse4 (and (= |timeShift_processEnvironment_~tmp~4#1| 1) (= ~waterLevel~0 1) (= ~pumpRunning~0 1))))) [2022-11-23 15:21:31,352 INFO L895 garLoopResultBuilder]: At program point L438(lines 438 455) the Hoare annotation is: (let ((.cse3 (= ~waterLevel~0 1)) (.cse7 (not (= |old(~pumpRunning~0)| 1))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse5 (not (= 1 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ~methAndRunningLastTime~0 0)) (.cse8 (not (= |old(~waterLevel~0)| 2))) (.cse6 (= 0 ~systemActive~0))) (and (or .cse0 (and .cse1 .cse2 .cse3) .cse4 (not (= |old(~waterLevel~0)| 1)) .cse5 .cse6) (or (and .cse3 (= ~pumpRunning~0 1)) .cse5 .cse7 .cse8) (or .cse4 .cse2 .cse5 (not (= ~methaneLevelCritical~0 0)) .cse7 .cse8) (or .cse0 .cse4 .cse5 (and .cse1 .cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse8 .cse6))) [2022-11-23 15:21:31,352 INFO L895 garLoopResultBuilder]: At program point L282(line 282) the Hoare annotation is: (let ((.cse6 (= 0 ~systemActive~0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= |old(~waterLevel~0)| 1))) (.cse4 (= ~pumpRunning~0 0)) (.cse5 (= ~waterLevel~0 1)) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse7 (= ~methAndRunningLastTime~0 0)) (.cse3 (not (= 1 ~systemActive~0))) (.cse9 (not (= |old(~pumpRunning~0)| 1))) (.cse8 (not (= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2 .cse3 (and .cse4 .cse5) .cse6) (or .cse0 .cse1 .cse3 (and .cse7 (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 1)) .cse8 .cse6) (or .cse0 .cse1 .cse7 .cse2 .cse3) (or .cse3 .cse9 .cse8 (and .cse4 (= |timeShift_processEnvironment_~tmp~4#1| 1) .cse5)) (or .cse1 .cse7 .cse3 (not (= ~methaneLevelCritical~0 0)) .cse9 .cse8))) [2022-11-23 15:21:31,352 INFO L899 garLoopResultBuilder]: For program point L282-1(line 282) no Hoare annotation was computed. [2022-11-23 15:21:31,353 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 376 399) the Hoare annotation is: (let ((.cse6 (not (= |old(~pumpRunning~0)| 1))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse4 (not (= 1 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ~methAndRunningLastTime~0 0)) (.cse8 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse7 (not (= |old(~waterLevel~0)| 2))) (.cse5 (= 0 ~systemActive~0))) (and (or .cse0 (and .cse1 .cse2 (= ~waterLevel~0 1)) .cse3 (not (= |old(~waterLevel~0)| 1)) .cse4 .cse5) (or .cse4 .cse6 .cse7 (and .cse8 (= ~pumpRunning~0 1))) (or .cse3 .cse2 .cse4 (not (= ~methaneLevelCritical~0 0)) .cse6 .cse7) (or .cse0 .cse3 .cse4 (and .cse1 .cse2 .cse8) .cse7 .cse5))) [2022-11-23 15:21:31,353 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 376 399) no Hoare annotation was computed. [2022-11-23 15:21:31,353 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 940) no Hoare annotation was computed. [2022-11-23 15:21:31,353 INFO L902 garLoopResultBuilder]: At program point L66-1(lines 66 70) the Hoare annotation is: true [2022-11-23 15:21:31,353 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 52 81) no Hoare annotation was computed. [2022-11-23 15:21:31,354 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 52 81) the Hoare annotation is: true [2022-11-23 15:21:31,354 INFO L902 garLoopResultBuilder]: At program point L62-2(lines 62 76) the Hoare annotation is: true [2022-11-23 15:21:31,354 INFO L902 garLoopResultBuilder]: At program point L58(line 58) the Hoare annotation is: true [2022-11-23 15:21:31,354 INFO L899 garLoopResultBuilder]: For program point L58-1(line 58) no Hoare annotation was computed. [2022-11-23 15:21:31,355 INFO L902 garLoopResultBuilder]: At program point L77(lines 52 81) the Hoare annotation is: true [2022-11-23 15:21:31,355 INFO L899 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2022-11-23 15:21:31,355 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2022-11-23 15:21:31,355 INFO L895 garLoopResultBuilder]: At program point L362(lines 315 363) the Hoare annotation is: false [2022-11-23 15:21:31,355 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-23 15:21:31,355 INFO L899 garLoopResultBuilder]: For program point L317(lines 316 361) no Hoare annotation was computed. [2022-11-23 15:21:31,356 INFO L895 garLoopResultBuilder]: At program point L338(line 338) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ~methAndRunningLastTime~0 0)) (.cse0 (= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0)) (.cse3 (= 1 ~systemActive~0)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ~waterLevel~0 1)) (and .cse0 .cse1 .cse2 (= 2 ~waterLevel~0) .cse3 .cse4) (and .cse0 (<= 2 ~waterLevel~0) .cse3 .cse4 (<= ~waterLevel~0 2) (= ~pumpRunning~0 1)))) [2022-11-23 15:21:31,356 INFO L895 garLoopResultBuilder]: At program point L359(lines 316 361) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_main_~tmp~0#1| 1) .cse0 .cse1 (= ~waterLevel~0 1)) (and (= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0) (= 2 ~waterLevel~0) .cse0 .cse1 (= ~pumpRunning~0 1)))) [2022-11-23 15:21:31,356 INFO L899 garLoopResultBuilder]: For program point L326(lines 326 332) no Hoare annotation was computed. [2022-11-23 15:21:31,356 INFO L899 garLoopResultBuilder]: For program point L326-1(lines 326 332) no Hoare annotation was computed. [2022-11-23 15:21:31,356 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 15:21:31,357 INFO L895 garLoopResultBuilder]: At program point L352-2(lines 346 357) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse4 (= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0)) (.cse5 (= 2 ~waterLevel~0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (= |ULTIMATE.start_main_~tmp~0#1| 1) .cse2 .cse3 (= ~waterLevel~0 1)) (and .cse4 .cse0 .cse1 .cse5 .cse2 .cse3) (and .cse4 .cse5 .cse2 .cse3 (= ~pumpRunning~0 1)))) [2022-11-23 15:21:31,357 INFO L899 garLoopResultBuilder]: For program point L336(lines 336 342) no Hoare annotation was computed. [2022-11-23 15:21:31,357 INFO L899 garLoopResultBuilder]: For program point L336-1(lines 336 342) no Hoare annotation was computed. [2022-11-23 15:21:31,357 INFO L895 garLoopResultBuilder]: At program point L142(lines 142 149) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-23 15:21:31,357 INFO L902 garLoopResultBuilder]: At program point L365(lines 306 369) the Hoare annotation is: true [2022-11-23 15:21:31,357 INFO L902 garLoopResultBuilder]: At program point L142-2(lines 142 149) the Hoare annotation is: true [2022-11-23 15:21:31,358 INFO L895 garLoopResultBuilder]: At program point L328(line 328) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) .cse1 .cse2 (= ~waterLevel~0 1)) (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 (<= ~waterLevel~0 2) (= ~pumpRunning~0 1)))) [2022-11-23 15:21:31,358 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 408 432) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 .cse2 (not (<= ~waterLevel~0 2)) (< ~waterLevel~0 2) .cse3) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3))) [2022-11-23 15:21:31,358 INFO L895 garLoopResultBuilder]: At program point L422(line 422) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methAndRunningLastTime~0 0)))) (and (or (not (= ~waterLevel~0 1)) .cse0 (and (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~3#1| 0)) .cse1 .cse2) (or .cse0 .cse1 (not (<= ~waterLevel~0 2)) (< ~waterLevel~0 2) .cse2))) [2022-11-23 15:21:31,358 INFO L895 garLoopResultBuilder]: At program point L416(lines 416 424) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or (not (= ~waterLevel~0 1)) .cse0 (and .cse1 (= |processEnvironment__wrappee__highWaterSensor_~tmp~3#1| 0)) .cse2 .cse3) (or .cse0 .cse2 (not (<= ~waterLevel~0 2)) (and .cse1 (= |processEnvironment__wrappee__highWaterSensor_~tmp~3#1| 1)) (< ~waterLevel~0 2) .cse3))) [2022-11-23 15:21:31,358 INFO L895 garLoopResultBuilder]: At program point L412(lines 412 429) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 .cse2 (not (<= ~waterLevel~0 2)) (< ~waterLevel~0 2) .cse3) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3))) [2022-11-23 15:21:31,359 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 408 432) no Hoare annotation was computed. [2022-11-23 15:21:31,359 INFO L895 garLoopResultBuilder]: At program point L427(line 427) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methAndRunningLastTime~0 0)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2) (or .cse0 .cse1 (not (<= ~waterLevel~0 2)) (< ~waterLevel~0 2) .cse2))) [2022-11-23 15:21:31,359 INFO L899 garLoopResultBuilder]: For program point L427-1(lines 408 432) no Hoare annotation was computed. [2022-11-23 15:21:31,359 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 176 187) no Hoare annotation was computed. [2022-11-23 15:21:31,359 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 176 187) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= ~pumpRunning~0 0)) (not (= |old(~waterLevel~0)| 1)) .cse0 (= ~waterLevel~0 1) (not (= ~methAndRunningLastTime~0 0))) (or .cse0 (< |old(~waterLevel~0)| 2) (not (= ~pumpRunning~0 1)) (= |old(~waterLevel~0)| ~waterLevel~0) (not (<= |old(~waterLevel~0)| 2))))) [2022-11-23 15:21:31,362 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:21:31,364 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:21:31,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:21:31 BoogieIcfgContainer [2022-11-23 15:21:31,396 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:21:31,396 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:21:31,396 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:21:31,397 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:21:31,397 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:20:53" (3/4) ... [2022-11-23 15:21:31,400 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 15:21:31,406 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-23 15:21:31,406 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-23 15:21:31,406 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-23 15:21:31,406 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-23 15:21:31,407 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-23 15:21:31,407 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-11-23 15:21:31,407 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-23 15:21:31,414 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 46 nodes and edges [2022-11-23 15:21:31,414 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-11-23 15:21:31,415 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-23 15:21:31,415 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 15:21:31,416 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 15:21:31,442 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && waterLevel == 1)) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || 0 == systemActive) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || (\old(waterLevel) == waterLevel && pumpRunning == 1))) && (((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) == 2)) || 0 == systemActive) [2022-11-23 15:21:31,443 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && waterLevel == 1)) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || 0 == systemActive) && ((((waterLevel == 1 && pumpRunning == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2))) && (((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) == 2)) || 0 == systemActive) [2022-11-23 15:21:31,443 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (pumpRunning == 0 && waterLevel == 1)) || 0 == systemActive) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || ((methAndRunningLastTime == 0 && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || !(\old(waterLevel) == 2)) || 0 == systemActive)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || ((pumpRunning == 0 && tmp == 1) && waterLevel == 1))) && (((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) [2022-11-23 15:21:31,443 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(waterLevel <= 2)) || waterLevel < 2) || !(methAndRunningLastTime == 0)) && ((((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || pumpRunning == 0) || !(1 == systemActive)) || !(methAndRunningLastTime == 0)) [2022-11-23 15:21:31,444 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || ((((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && !(0 == systemActive)) && tmp == 0)) && ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) == 2)) || 0 == systemActive) || tmp == 0)) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (pumpRunning == 0 && waterLevel == 1)) || 0 == systemActive)) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || ((methAndRunningLastTime == 0 && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || !(\old(waterLevel) == 2)) || 0 == systemActive)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || ((pumpRunning == 0 && tmp == 1) && waterLevel == 1))) && ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || ((((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && !(0 == systemActive)) && tmp == 0)) || 0 == systemActive) [2022-11-23 15:21:31,444 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || ((((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && !(0 == systemActive)) && tmp == 0)) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || ((((pumpRunning == 0 && tmp == 1) && methAndRunningLastTime == 0) && waterLevel == 1) && !(0 == systemActive)))) && ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (methAndRunningLastTime == 0 && tmp == 0)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) == 2)) || 0 == systemActive)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && waterLevel == 1) && !(0 == systemActive)))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(\old(waterLevel) == 2)) || (\old(waterLevel) == waterLevel && pumpRunning == 1))) && ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || ((((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && !(0 == systemActive)) && tmp == 0)) || 0 == systemActive) [2022-11-23 15:21:31,445 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || 0 == systemActive)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(\old(waterLevel) == 2)) || 0 == systemActive) [2022-11-23 15:21:31,445 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || 0 == systemActive) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(\old(waterLevel) == 2)) || 0 == systemActive)) && (((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2))) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || ((tmp == 1 && waterLevel == 1) && pumpRunning == 1)) [2022-11-23 15:21:31,446 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || (pumpRunning == 0 && tmp == 0)) || !(1 == systemActive)) || !(methAndRunningLastTime == 0)) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(waterLevel <= 2)) || (pumpRunning == 0 && tmp == 1)) || waterLevel < 2) || !(methAndRunningLastTime == 0)) [2022-11-23 15:21:31,470 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c144ce-8ceb-4480-bb8d-b8bfc5b035d4/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 15:21:31,470 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:21:31,470 INFO L158 Benchmark]: Toolchain (without parser) took 39741.77ms. Allocated memory was 157.3MB in the beginning and 570.4MB in the end (delta: 413.1MB). Free memory was 120.6MB in the beginning and 471.1MB in the end (delta: -350.5MB). Peak memory consumption was 63.9MB. Max. memory is 16.1GB. [2022-11-23 15:21:31,471 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 157.3MB. Free memory was 123.2MB in the beginning and 123.1MB in the end (delta: 140.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:21:31,471 INFO L158 Benchmark]: CACSL2BoogieTranslator took 499.13ms. Allocated memory is still 157.3MB. Free memory was 120.6MB in the beginning and 101.9MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-23 15:21:31,471 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.82ms. Allocated memory is still 157.3MB. Free memory was 101.4MB in the beginning and 99.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:21:31,472 INFO L158 Benchmark]: Boogie Preprocessor took 47.10ms. Allocated memory is still 157.3MB. Free memory was 99.3MB in the beginning and 97.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:21:31,472 INFO L158 Benchmark]: RCFGBuilder took 669.78ms. Allocated memory is still 157.3MB. Free memory was 97.7MB in the beginning and 73.1MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-23 15:21:31,473 INFO L158 Benchmark]: TraceAbstraction took 38386.87ms. Allocated memory was 157.3MB in the beginning and 570.4MB in the end (delta: 413.1MB). Free memory was 72.6MB in the beginning and 476.4MB in the end (delta: -403.8MB). Peak memory consumption was 294.6MB. Max. memory is 16.1GB. [2022-11-23 15:21:31,473 INFO L158 Benchmark]: Witness Printer took 73.75ms. Allocated memory is still 570.4MB. Free memory was 476.4MB in the beginning and 471.1MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 15:21:31,475 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 157.3MB. Free memory was 123.2MB in the beginning and 123.1MB in the end (delta: 140.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 499.13ms. Allocated memory is still 157.3MB. Free memory was 120.6MB in the beginning and 101.9MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.82ms. Allocated memory is still 157.3MB. Free memory was 101.4MB in the beginning and 99.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.10ms. Allocated memory is still 157.3MB. Free memory was 99.3MB in the beginning and 97.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 669.78ms. Allocated memory is still 157.3MB. Free memory was 97.7MB in the beginning and 73.1MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 38386.87ms. Allocated memory was 157.3MB in the beginning and 570.4MB in the end (delta: 413.1MB). Free memory was 72.6MB in the beginning and 476.4MB in the end (delta: -403.8MB). Peak memory consumption was 294.6MB. Max. memory is 16.1GB. * Witness Printer took 73.75ms. Allocated memory is still 570.4MB. Free memory was 476.4MB in the beginning and 471.1MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 940]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 38.3s, OverallIterations: 11, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1888 SdHoareTripleChecker+Valid, 2.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1871 mSDsluCounter, 2282 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1707 mSDsCounter, 943 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2907 IncrementalHoareTripleChecker+Invalid, 3850 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 943 mSolverCounterUnsat, 575 mSDtfsCounter, 2907 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 724 GetRequests, 506 SyntacticMatches, 7 SemanticMatches, 211 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6582 ImplicationChecksByTransitivity, 13.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=505occurred in iteration=10, InterpolantAutomatonStates: 94, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 296 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 33 LocationsWithAnnotation, 938 PreInvPairs, 997 NumberOfFragments, 1615 HoareAnnotationTreeSize, 938 FomulaSimplifications, 1046 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 33 FomulaSimplificationsInter, 10605 FormulaSimplificationTreeSizeReductionInter, 3.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 6.1s InterpolantComputationTime, 714 NumberOfCodeBlocks, 714 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 871 ConstructedInterpolants, 0 QuantifiedInterpolants, 3637 SizeOfPredicates, 28 NumberOfNonLiveVariables, 1064 ConjunctsInSsa, 77 ConjunctsInUnsatCore, 16 InterpolantComputations, 9 PerfectInterpolantSequences, 357/532 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 306]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 284]: Loop Invariant Derived loop invariant: ((((((((((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || ((((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && !(0 == systemActive)) && tmp == 0)) && ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) == 2)) || 0 == systemActive) || tmp == 0)) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (pumpRunning == 0 && waterLevel == 1)) || 0 == systemActive)) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || ((methAndRunningLastTime == 0 && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || !(\old(waterLevel) == 2)) || 0 == systemActive)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || ((pumpRunning == 0 && tmp == 1) && waterLevel == 1))) && ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || ((((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && !(0 == systemActive)) && tmp == 0)) || 0 == systemActive) - InvariantResult [Line: 438]: Loop Invariant Derived loop invariant: (((((((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && waterLevel == 1)) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || 0 == systemActive) && ((((waterLevel == 1 && pumpRunning == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2))) && (((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) == 2)) || 0 == systemActive) - InvariantResult [Line: 412]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(waterLevel <= 2)) || waterLevel < 2) || !(methAndRunningLastTime == 0)) && ((((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || pumpRunning == 0) || !(1 == systemActive)) || !(methAndRunningLastTime == 0)) - InvariantResult [Line: 416]: Loop Invariant Derived loop invariant: ((((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || (pumpRunning == 0 && tmp == 0)) || !(1 == systemActive)) || !(methAndRunningLastTime == 0)) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(waterLevel <= 2)) || (pumpRunning == 0 && tmp == 1)) || waterLevel < 2) || !(methAndRunningLastTime == 0)) - InvariantResult [Line: 442]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || 0 == systemActive) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(\old(waterLevel) == 2)) || 0 == systemActive)) && (((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2))) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || ((tmp == 1 && waterLevel == 1) && pumpRunning == 1)) - InvariantResult [Line: 376]: Loop Invariant Derived loop invariant: (((((((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && waterLevel == 1)) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || 0 == systemActive) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || (\old(waterLevel) == waterLevel && pumpRunning == 1))) && (((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) == 2)) || 0 == systemActive) - InvariantResult [Line: 276]: Loop Invariant Derived loop invariant: (((((((((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || ((((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && !(0 == systemActive)) && tmp == 0)) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || ((((pumpRunning == 0 && tmp == 1) && methAndRunningLastTime == 0) && waterLevel == 1) && !(0 == systemActive)))) && ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (methAndRunningLastTime == 0 && tmp == 0)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) == 2)) || 0 == systemActive)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && waterLevel == 1) && !(0 == systemActive)))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(\old(waterLevel) == 2)) || (\old(waterLevel) == waterLevel && pumpRunning == 1))) && ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || ((((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && !(0 == systemActive)) && tmp == 0)) || 0 == systemActive) - InvariantResult [Line: 315]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 316]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == 1) && 1 == systemActive) && splverifierCounter == 0) && waterLevel == 1) || ((((tmp == systemActive && 2 == waterLevel) && 1 == systemActive) && splverifierCounter == 0) && pumpRunning == 1) - InvariantResult [Line: 142]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 940]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || 0 == systemActive)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(\old(waterLevel) == 2)) || 0 == systemActive) - InvariantResult [Line: 142]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && tmp == 1) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 434]: Loop Invariant Derived loop invariant: ((((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (pumpRunning == 0 && waterLevel == 1)) || 0 == systemActive) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || ((methAndRunningLastTime == 0 && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || !(\old(waterLevel) == 2)) || 0 == systemActive)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || ((pumpRunning == 0 && tmp == 1) && waterLevel == 1))) && (((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) RESULT: Ultimate proved your program to be correct! [2022-11-23 15:21:31,503 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c144ce-8ceb-4480-bb8d-b8bfc5b035d4/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE